[tahunua001]

well they're both a bit of a compromise cartridge. military/AR shooters wanted a cartridge that had more OOMPH than 5.56 but didn't want all the ballistic drawbacks of 300 BLK or 7.62x39 so one company made the 6.8SPC which does better at packing a punch due to it's slightly larger diameter projectiles that carry more weight while 6.5 grendel in general has a better ballistic coefficient and maintains more accuracy and more of it's initial energy over long range. for my purposes I chose the 6.5 grendel. it'll serve well as a hunting rifle, target rifle, varminter, home defense(if need be but I have others for that purpose), and truck gun(again, other guns already for that purpose). neither of these cartridges are what I would want to take to a 1000 yard match but if it were a 500 yard match, long range type hunting, I would rather have the 6.5 grendel.